From: The effect of speaker gender and talker proficiency on the realization of Taiwan Min /dz/ among young speakers
Coefficient
Std. error
z value
p
Intercept
3.19
3.59
0.89
.38
Vowel (unrounded)
− 2.53
2.19
− 1.15
.25
Proficiency (mid)
0.36
4.31
0.08
.93
Vowel: proficiency
3.48
2.62
1.33
.18